/*
 * Copyright (C) 2009-2011 Nick Johnson <nickbjohnson4224 at gmail.com>
 * 
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <math.h>
#include <float.h>

/* If GCC/CLang builtins are available, use them */
#ifdef __GNUC__

float ldexpf(float x, int n) {
	return __builtin_ldexpf(x, n);
}

double ldexp(double x, int n) {
	return __builtin_ldexp(x, n);
}

long double ldexpl(long double x, int n) {
	return __builtin_ldexpl(x, n);
}

#else

float ldexpf(float x, int n) {
	return (x * powf(2.0, (float) n));
}

double ldexp(double x, int n) {
	return (x * pow(2.0, (double) n));
}

long double ldexpl(long double x, int n) {
	return (x * powl(2.0, (long double) n));
}

#endif
